Improvement in machines tor tempering sickle-sections, plane-irons



anita sans it) aient ire.

SAMUEL E. REYNOLDS, or Amman,4 NEW Youre Letters Patent No. 107,541, dated September 20, i870.

The Schedule referred to in these Letters PatentA and making part oi' the same.

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To all whom tt may concer-n:

Be it known that I, SAMUEL F. REYNOLDS, of Auburn, in the county of Cayuga and State of New York, have invented certainnew and useful Improvements in Machines for Tempering Sickle-Sections, Plane-Irons, and other,v articles of steel; and I do hereby declare the following to be afnll,

clear, and exactdescription of the same, reference being had to the accompanying drawings makiligal e l l l part of this specincation, in whlch- Figure l represents, in perspective, so much-of the machine in question as will illustrate the invention,

-heat from the shielded portions.

By a machine acting or operating as hereinafter described, a tine cutlery temper can be given to such portion ot' the steel that are to form cutting-edges, while the other portions of lthe steel may be comparatively untempered or soft, and thus avoid breaking.

To enable others skilled in the art 'to make and use my invention, I willproceed to describe the \same with reference to the drawings.

A base or bed, A, vincloses a water-chamber or passage, B, through which a head of-water can be allowed to flow, regulated hy a stop-cock /or valve connected to the supply-pipe, or arranged at any suitable place in the column of water; -and on this base or bed, and over the water-orifice, is placed a block, C, of the shape or form of the thing to be tempered, that shown being designed for tempering sickleseetions, and of a Vlform. y Y

The block G has upon it a ilat surface, a a, upon which the heel and central portion ofasickle-section, or tliatporton which is not to be tempered,is placed, and upon which surface said portion lies, and is held, as will be hereafter explained.

Connected with this fiat holding surface u, and `cu a plane somewhat below it, and parallel with its sides,

is a V-shaped rib or projection, c c, and between this projection and the surface a there is a water-way, e e, through which the'owlng water strikes the sicklesection along its sides and point, which portion of' itis to form the cutting-edges, the lwater being .guided 'the-reou by thevprojections c, and allowed to flow off between-the under side of the section or piece 'being tempered and the top of the projections'or guides c, while the central and heel portion of said article is protected from the direct action of the water, but has the heat drawn from it by the flow of water against its exposed parts, thus tempering the sides, and leaving thev balance` not tempered.

0n pillar-blocks D D, or 'in' them, is hung a shaft, E, having upon one of its ends alever or crank, F, by which it may be turned. l

Upon the shaft E there is a spur-wheeLvG, that gears into a rack, H, that is attached to a follower, I, that moves up and down between thepillarblocks or uprights D, and guided in so doing by guide-pieces baud recesses f in the follower that receives them.

The object and purpose of this follower is Ato hold the sickle-section, or other article to be tempered,

'tight down against the block O, which is directly under it, and against the flow or pressure of the water coming against its under side, as well as'to protect the portion not to be tempered against the immediate action of the` water, butto draw off indirectly the heat from said protected portions, or drive it off by cooling the edges irst.-

lf-plane-irons are to be tempered, or any other straight, curved, or augularfedged cutting orabrad'ing instrument, then the under die or block and the water-way should be madevo'f corresponding form, or so that only that part to be tempered should be exposed to the direct action of the flowing water, while the portions not to be tempered are shielded by the holdy ing-surfaces. f l

In tempering sickle-sections, whether for reapers or mowers, I proceed as follows:

The sections, being properly heated, are taken out. of the lire, and the edges dipped in oil. Theyare then'irnmediately placed on the die-block O, and the follower I run down tight upon the sections. The water is then let on, which strikes' the -prjcctiug edges only of the section, and flowsk off over the projection or lip c.

By this mode I get great uniformity of temper, and where the cutting-edges a-re to be, and without loss by cracking, breaking, orwarping.

In the uprights D there may be also a;shaft,'J, hung, with side and rear bearing-surfaces, el g, to hold the rack-bar Hv to the spur-wheel G, and to relieve friction by turning when the rack moves.

Having thus fully described my invention,

That [claim therein as new, and desire to secure by Letters Patent, in a machine for' tempering sickle# sections, plane-irons, and other instruments, is.-

In connection witha stream 'or' column of flowing water,'a die, having a holding-surface, a water-passage, aud a recessed lip or projection, substantially as described, and for the purpose set forth.

\ SAMUEL F. REYNOLDS.

Witnesses: W. I. Fox, C. E. BARBER. 

